字符串作为文档

Question

我正在关注使用XPath解析XML的这个问题，它给出了以下示例来打开文档：

DocumentBuilderFactory domFactory = DocumentBuilderFactory.newInstance();
domFactory.setNamespaceAware(true); // never forget this!
DocumentBuilder builder = domFactory.newDocumentBuilder();
Document doc = builder.parse("books.xml");

我想做的是改变它，以便Document正在读取我已经创建的String变量，而不是从文件中读取。我怎么能这样做？

Answer 1

builder.parse(new InputSource(new StringReader("<some><xml></xml></some>")));

Answer 2

看here

DocumentBuilderFactory dbf =
        DocumentBuilderFactory.newInstance();
    DocumentBuilder db = dbf.newDocumentBuilder();
    InputSource is = new InputSource();
    is.setCharacterStream(new StringReader(xmlRecords));

    Document doc = db.parse(is);

Answer 3

你可以尝试这个：

public static Document stringToDom(String xmlSource) 
        throws SAXException, ParserConfigurationException, IOException {
    DocumentBuilderFactory factory = DocumentBuilderFactory.newInstance();
    DocumentBuilder builder = factory.newDocumentBuilder();
    return builder.parse(new InputSource(new StringReader(xmlSource)));
}